Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A method of wireless communication, comprising: receiving a plurality of parameter values at a user equipment (UE) using a first local oscillator (LO) frequency value, wherein the plurality of parameter values includes indications of a downlink frequency channel and an uplink frequency channel; determining a second LO frequency value at the UE, wherein the second LO frequency value is determined using the indications of downlink and uplink frequency channels; and receiving downlink signals from an associated base station using the second LO frequency value, wherein the downlink frequency channel is in a millimeter wave band and the uplink frequency channel is in a sub-7GHz band, wherein there is at least a 10 GHz separation between the downlink frequency channel and the uplink frequency channel, and wherein the UE receives the downlink signals in the millimeter wave band and the UE transmits uplink signals in sub-7GHz band.
This invention relates to wireless communication systems, specifically addressing the challenge of managing frequency separation between downlink and uplink channels in heterogeneous frequency bands. The method involves a user equipment (UE) receiving parameter values that indicate a downlink frequency channel in the millimeter wave (mmWave) band and an uplink frequency channel in the sub-7GHz band. The UE determines a second local oscillator (LO) frequency value based on these channel indications, ensuring proper synchronization for downlink signal reception. The downlink and uplink channels are separated by at least 10 GHz, with the UE receiving downlink signals in the mmWave band and transmitting uplink signals in the sub-7GHz band. The first LO frequency value is used initially to receive the parameter values, while the second LO frequency value is derived to optimize downlink reception in the mmWave band. This approach enables efficient frequency management in systems where downlink and uplink operate in distinct frequency ranges, improving signal integrity and communication reliability. The method ensures compatibility with existing wireless standards while leveraging the high-bandwidth capabilities of mmWave for downlink and the broader coverage of sub-7GHz for uplink.
2. The method of claim 1 , further comprising transmitting uplink signals to the associated base station using the uplink frequency channel.
A wireless communication system involves a user device operating in a shared frequency spectrum, where the device dynamically selects frequency channels for communication with a base station. The system addresses challenges in managing interference and ensuring reliable communication in shared spectrum environments. The device monitors available frequency channels to identify those that are suitable for uplink and downlink communication. It selects a downlink frequency channel for receiving signals from the base station and an uplink frequency channel for transmitting signals to the base station. The selection process may involve evaluating channel quality, interference levels, or regulatory constraints. Once the channels are selected, the device establishes communication links using these channels. Additionally, the device transmits uplink signals to the base station using the selected uplink frequency channel, ensuring efficient and reliable data transmission. The system may also include mechanisms for dynamically adjusting the selected channels based on changing conditions in the shared spectrum. This approach enhances communication performance in environments where spectrum resources are shared among multiple users or systems.
3. The method of claim 1 , wherein at least one of the uplink and downlink frequency channels and the LO frequency value are unknown to the UE prior to receiving the indications.
This invention relates to wireless communication systems, specifically addressing the challenge of unknown frequency channel and local oscillator (LO) frequency values in user equipment (UE). The method involves a UE receiving indications from a network that specify at least one of the uplink and downlink frequency channels or the LO frequency value. These parameters are initially unknown to the UE, meaning the UE lacks prior knowledge of the exact frequencies required for communication. The indications provide the necessary frequency information, enabling the UE to configure its transceiver accordingly. This process ensures proper synchronization and communication between the UE and the network, even when the UE does not initially know the required frequencies. The method may also involve adjusting the LO frequency based on the received indications to align with the network's frequency settings. This approach improves reliability and efficiency in wireless communication by dynamically providing critical frequency parameters to the UE.
4. The method of claim 1 , wherein the first and second LO frequency values are same.
A system and method for frequency synchronization in wireless communication involves generating local oscillator (LO) signals for upconversion and downconversion in a transceiver. The invention addresses the challenge of maintaining precise frequency alignment between transmit and receive paths to minimize phase noise and improve signal integrity. The method includes generating a first LO signal for upconverting a baseband signal to a radio frequency (RF) signal in a transmitter and a second LO signal for downconverting an RF signal to a baseband signal in a receiver. The first and second LO signals share the same frequency value, ensuring coherent frequency conversion between the transmit and receive paths. This synchronization reduces phase noise and improves signal quality, particularly in high-frequency applications where frequency drift can degrade performance. The LO signals may be generated using a shared oscillator or synchronized oscillators to maintain frequency alignment. The method further includes adjusting the phase of the LO signals to compensate for propagation delays and timing mismatches, ensuring accurate signal demodulation. The invention is applicable in wireless communication systems, radar, and other RF applications requiring precise frequency synchronization.
5. The method of claim 1 , wherein the uplink and downlink channels are selected based on optimum utilization of a spectrum.
This invention relates to wireless communication systems, specifically optimizing spectrum utilization for uplink and downlink channels. The problem addressed is inefficient spectrum allocation, which can lead to congestion, reduced data rates, or wasted bandwidth in wireless networks. The method involves dynamically selecting uplink and downlink channels to maximize spectrum efficiency. It analyzes available frequency bands, traffic patterns, and interference levels to determine the most effective allocation. The selection process considers factors such as channel quality, user demand, and regulatory constraints to ensure optimal performance. By dynamically adjusting channel assignments, the system adapts to changing network conditions, improving overall throughput and reducing latency. The method may also incorporate machine learning or predictive algorithms to anticipate future demand and preemptively adjust channel allocations. Additionally, it can integrate with existing network protocols to ensure compatibility with legacy systems while enhancing efficiency. The goal is to achieve near-real-time optimization, minimizing disruptions while maximizing spectral efficiency. This approach is particularly useful in dense urban environments or high-traffic scenarios where spectrum resources are limited. By intelligently managing uplink and downlink channels, the system ensures fair resource distribution and minimizes interference, leading to a more reliable and efficient wireless communication network.
6. The method of claim 1 , wherein the plurality of parameter values includes channel properties relating to the associated base station.
This invention relates to wireless communication systems, specifically methods for optimizing network performance by adjusting transmission parameters based on channel properties associated with a base station. The problem addressed is the need to dynamically adapt communication parameters to improve signal quality, reduce interference, and enhance overall network efficiency in varying channel conditions. The method involves determining a plurality of parameter values for wireless communication, where these parameters include channel properties specific to the base station. These properties may encompass signal strength, interference levels, path loss, or other channel characteristics that influence signal transmission. By analyzing these properties, the system can adjust transmission parameters such as power levels, modulation schemes, or resource allocation to optimize performance. The method may also involve comparing the determined parameter values with predefined thresholds or historical data to make real-time adjustments. This adaptive approach ensures that the communication system operates efficiently under different environmental and network conditions, improving reliability and user experience. The invention is particularly useful in dense urban areas or environments with high interference, where dynamic parameter adjustments are critical for maintaining stable connections.
7. The method of claim 1 , wherein the plurality of parameter values includes channel properties relating to neighboring base stations.
A system and method for optimizing wireless communication performance by analyzing and adjusting network parameters based on channel properties of neighboring base stations. The technology addresses the challenge of interference and signal degradation in dense wireless networks, where neighboring base stations can disrupt communication quality. The method involves collecting and processing channel properties from neighboring base stations, such as signal strength, interference levels, and frequency usage, to dynamically adjust transmission parameters. This ensures efficient spectrum utilization and minimizes interference, improving overall network reliability and user experience. The system may also incorporate machine learning to predict optimal parameter adjustments based on historical and real-time data. By leveraging insights from neighboring base stations, the method enhances coordination between cells, reducing handover failures and improving data throughput. The solution is particularly useful in urban environments with high base station density, where traditional interference management techniques are less effective. The method dynamically adapts to changing network conditions, ensuring consistent performance across varying user loads and environmental factors.
8. A non-transitory computer-readable medium having program code recorded thereon, the program code comprising: program code to receive a plurality of parameter values at a user equipment (UE) using a first local oscillator (LO) frequency value, wherein the plurality of parameter values includes indications of downlink frequency channel and uplink frequency channel; program code to determine a second LO frequency value at the UE, wherein the second LO frequency value is determined using the indications of downlink and uplink frequency channels; and program code to receive downlink signals from an associated base station using the second LO frequency value, wherein the downlink frequency channel is in a millimeter wave band and the uplink frequency channel is in a sub-7 GHz band, wherein there is at least a 10 GHz separation between the downlink frequency channel and the uplink frequency channel, and wherein the UE receives the downlink signals in the millimeter wave band and the UE transmits uplink signals in sub-7 GHz band.
This invention relates to wireless communication systems, specifically addressing frequency synchronization in user equipment (UE) operating with widely separated downlink and uplink frequency bands. The problem solved is ensuring accurate frequency synchronization when a UE communicates with a base station using a millimeter wave (mmWave) downlink band and a sub-7 GHz uplink band, with at least a 10 GHz separation between them. Traditional synchronization methods may struggle with such large frequency gaps, leading to signal reception errors. The invention involves a computer-readable medium storing program code for a UE. The code receives parameter values, including downlink and uplink frequency channel indications, using an initial local oscillator (LO) frequency. The UE then determines a second LO frequency value based on these channel indications. This second LO frequency is used to receive downlink signals from the base station in the mmWave band, while uplink signals are transmitted in the sub-7 GHz band. The solution ensures proper frequency alignment despite the significant separation between bands, improving communication reliability in dual-band systems. The method dynamically adjusts the LO frequency to match the downlink channel, compensating for the large frequency difference between bands.
9. The non-transitory computer-readable medium of claim 8 , wherein the program code further includes program code to transmit uplink signals to the associated base station.
This invention relates to wireless communication systems, specifically improving data transmission efficiency between user devices and base stations. The problem addressed is optimizing uplink communication in wireless networks, particularly in scenarios where devices need to transmit data to a base station while minimizing power consumption and latency. The invention involves a non-transitory computer-readable medium containing program code executable by a processor in a user device. The program code includes instructions for receiving downlink signals from an associated base station, processing these signals to extract control information, and determining transmission parameters for uplink signals based on the received information. The program code further includes instructions for transmitting uplink signals to the associated base station, ensuring efficient and reliable data transfer. The system dynamically adjusts transmission parameters such as power levels, modulation schemes, and timing to adapt to varying network conditions. This adaptive approach enhances communication reliability and reduces energy consumption, particularly beneficial for battery-powered devices. The invention also supports multiple communication protocols, allowing compatibility with different wireless standards. The overall solution improves uplink data throughput while maintaining low latency and power efficiency.
Unknown
April 28, 2020
Browse 5M+ US patents with plain-English claim translations and AI-generated analysis.